CN101931499A

CN101931499A - Transport format combination selecting method, wireless communication system, and mobile station

Info

Publication number: CN101931499A
Application number: CN2010102494046A
Authority: CN
Inventors: 黑田奈穗子; 滨边孝二郎; 李琎硕
Original assignee: NEC Corp
Current assignee: NEC Corp
Priority date: 2004-06-11
Filing date: 2005-05-09
Publication date: 2010-12-29
Anticipated expiration: 2025-05-09
Also published as: HK1200984A1; US20110269497A1; US20130065630A1; US8306566B2; US20160270009A1; US8019375B2; US8583163B2; US7761111B2; EP1848127A1; KR101086130B1; US9674798B2; KR100985645B1; CN1973456B; EP2765716A1; JP2007235996A; EP1755236A4; EP2765716B1; KR20100103731A; US20070161394A1; KR20080052679A

Abstract

The invention provides a transport format combination (TFC) selecting method, a wireless communication system, and a mobile station, wherein, a mobile station selects a first TFC for use in data transmission in a first physical channel between the mobile station and a base station, and also selects a second TFC for use in data transmission in a second physical channel between the mobile station and the base station. The method includes: selecting the first TFC, combinationally estimating a transmission power based on the selected first TFC, wherein a block state is not included when used in the first physical channel for data transmission; calculating a reference power by subtracting the first physical channel transmission power which is used together with the second physical channel from a maximum transmission power of the mobile station; selecting the second TFC, wherein a transmission capable state is included when used in the second physical channel for data transmission, and the second TFC includes the transmission capable state if the estimated transmission power based on the second TFC does not excess the reference power.

Description

Transport format combination selecting method, wireless communication system and mobile radio station

The application is to be that May 9, application number in 2005 are 200580018774.6 and denomination of invention dividing an application for the Chinese patent application of " transport format combination selecting method, wireless communication system and mobile radio station " applying date.

Technical field

The present invention relates to be used to each uplink physical channel in the mobile radio station of wireless communication system to select the technology of transformat combination of the combination of the transformat that representative will be provided with in the transmission channel of this uplink physical channel.

Background technology

WCDMA (Wideband Code Division Multiple Access (WCDMA)) wireless communication system adopts direct code to expand multiplexed process.Expand multiplexed process according to direct code, emission side utilizes spreading code expansion emission data, and the recipient utilizes same spreading code to come to carry out de-spread to receiving data.Reception data after handling like this have the ratio (SNIR: signal noise interference ratio) of higher expectation wave power to interference and noise power.

The recipient, if be equal to or higher than predetermined value, that is, have predetermined or higher quality if receive data based on the SNIR of de-spread process, then expectation reception data can be correctly decoded.Therefore, even when a plurality of links use identical frequency band, expansion process is conciliate in above-mentioned data expansion also makes the recipient to decode to the reception data of each link.

In general, because the ratio of emission side is lower, therefore the number of the information bit that can launch simultaneously is bigger, and emission is than higher.On the other hand, owing to reduce to some extent, therefore must increase transmitting power to satisfy predetermined quality based on the increase of the SNIR of de-spread process.

Expand multiplexed process according to direct code, the transmitting power of certain link is served as the interference power of another link.Therefore, in each link, be provided with and make the as far as possible little emission rate of transmitting power and to satisfy emission rate simultaneously that to require the interference to reduce other links be very important, and such emission rate has caused the reducing of bandwidth of wireless communication system.

Therefore, the WCDMA wireless communication system is controlled the transmitting power of mobile radio station and base station to realize having the emission data of predetermined quality under the control of high-speed closed loop transmitting power.

According to 3GPP (third generation partner program), after deliberation give the function (seeing 3GPP TS 25.321V5.8.0 (2004-03) " Medium Access Control (MAC) protocolspecification ") of selecting transformat combination (hereinafter referred to as " TFC ") to the WCDMA mobile radio station.

The WCDMA mobile radio station can be launched the data of a plurality of different transmission channels by single physical channel.Mobile radio station generally uses DPCH (DPCH) as physical channel.DPCH comprises DPCCH (Dedicated Physical Control Channel) that is used to send pilot data and control data and the DPDCH (Dedicated Physical Data Channel) that is used to send user data.The emission type that is called as transformat (hereinafter referred to as " TF ") is set up in each transmission channel.The project that is provided with of TF comprises transmission block size, CRC (cyclic redundancy check (CRC)) bit size, cataloged procedure, Transmission Time Interval (TTI) or the like.Above-described TFC represents the combination of the TFC that is provided with in the different transmission channels.

According to the WCDMA wireless communication system, the TFC set that comprises one or more TFC that the base station control device indication will be permitted for the physical channel of each mobile radio station, and mobile radio station selects will be used to send the TFC of DPCH from the indicated TFC of base station control device gathers.

The process of determining the state of mobile radio station when using TFC is described below with reference to Fig. 1.

At first, calculate the transmitting power of DPCH when TFC is used at each TFC.

Then, the state of mobile radio station all is classified as status of support when each TFC is used.

If, in belonging to the TFC of status of support, have such TFC, wherein among the scheduled time X in the past the transmitting power of DPCH time Y or the longer time in all greater than the maximum transmission power of mobile radio station, then use the state of the mobile radio station of this TFC to be regarded as the excess power state.

If, in the TFC that belongs to the excess power state, have such TFC, this TFC at the fixed time T or the longer time in all belong to the excess power state, then use the state of the mobile radio station of this TFC to be regarded as blocked state.

If, in the TFC that belongs to excess power state or blocked state, have such TFC, wherein the transmitting power of DPCH continues to be equal to or less than the maximum transmission power of mobile radio station in preset time Z, then uses the state of the mobile radio station of this TFC to be returned to status of support.

Mobile radio station is determined the state of mobile radio station when using TFC according to said process.Select to be used for having the TFC of the TF of high emission speed among the TFC of mobile radio station from be in other states except that blocked state the transmission channel with high priority setting.Long-term propagation path changes to determine because the state of mobile radio station when using TFC is based on, and therefore, even owing to the reason propagation path transient change of decline and so on, the TFC that satisfies quality requirement in distance on an average also can be selected.

At present, according to 3GPP, studied use EUDCH (enhanced uplink data channel) as the physical channel that is used for by the grouping of up link transmitted at high speed.For EUDCH, studied the grouping emission form (mainly being emission rate) (seeing 3GPP TR 25.896V6.0.0 (2004-03) " Feasibility Study for Enhanced Uplink for UPRAFDD ") that TFC selection function that base station and base station control device will utilize mobile radio station is controlled the up link of mobile radio station.

Studies show that, in the WCDMA wireless communication system, the ratio (the noise amount of liter) of noise power the expectation ripple of the data that base station measurement receives from mobile radio station, and base station control device is operatively connected to the number of mobile radio station of base station and the TFC that is provided with in mobile radio station, so as by base station measurement to above-mentioned value can not surpass predetermined threshold value.

But in general, the data transmission between base station and the base station control device can experience certain delay, and the data transmission from the base station control device to the base station also can experience bigger delay.Therefore, base station control device will rise that quantitative changeization is controlled the number of mobile radio station and the TFC set is very difficult according to instantaneous noise.

Therefore, traditional WCDMA wireless communication system has needed to be provided with the number and the TFC set of mobile radio station, rises value fully less than predetermined threshold value to keep average noise, thereby prevents that rapid noise from rising quantitative changeization.

For EUDCH, having studied the base station will be at high speed to a mobile radio station indication TFC (maximum TFC), wherein the transmitting power of EUDCH is maximum in allowing the TFC that uses, and mobile radio station will be selected such TFC, and wherein the transmitting power of EUDCH is equal to or less than the transmitting power of the EUDCH under the situation that the indicated maximum TFC in base station is used.

Because above-mentioned research makes that may reduce variable noise rises weight range, so average noise rises value and can be set to higher rank.In other words, owing to be connected to the number of mobile radio station of base station and the maximum transmission power of maximum TFC can be set to than higher before value, so the coverage of up link and capacity are increased.

But, because mobile radio station not only uses EUDCH, also use DPCH mentioned above, so mobile radio station needs also to select TFC for DPCH.Therefore, mobile radio station must be selected two TFC, promptly is used for the TFC and the TFC that is used for DPCH of EUDCH.

As mentioned above, mobile radio station whether greater than the maximum transmission power of mobile radio station, is determined the state of mobile radio station, so that selection TFC based on the transmitting power that consumes when each TFC is used.

As shown in Figure 2, for example, when mobile radio station will select to be used for the TFC (hereinafter referred to as " E-TFC ") of EUDCH, mobile radio station can be selected E-TFC4, and wherein the transmitting power of EUDCH is by P _EUDCHExpression, this P _EUDCHLess than maximum transmission power P _Max, and when mobile radio station will be selected to be used for the TFC of DPCH, mobile radio station can be selected TFC6, wherein the transmitting power of DPCH is by P _PDCHExpression, this P _PDCHLess than maximum transmission power P _Max

But, when mobile radio station is launched data simultaneously in EUDCH and DPCH, the summation (P of the transmitting power of EUDCH and the transmitting power of DPCH _EUDCH+ P _PDCH) surpassed the maximum transmission power P of mobile radio station _MaxThereby, caused mobile radio station to experience the problem of transmitting power deficiency.

In this case, the transmitting power that must reduce any one or both among TFC and the E-TFC to be making the power adjustment, is equal to or less than maximum transmission power P so that total transmitting power is reduced to _MaxRank.But, there is another problem, the deterioration of the data of the physical channel emission that promptly is reduced by transmitting power.

Summary of the invention

Therefore, an object of the present invention is to provide a kind of transport format combination selecting method, wireless communication system and mobile radio station, they make can select E-TFC, when utilizing selected E-TFC and DPCH to launch data simultaneously in EUDCH and DPCH, total transmitting power can not surpass the maximum power of mobile radio station with convenient mobile radio station.

In a kind of method of selecting transformat combination according to the present invention, mobile radio station be from will being a TFC of the data transmission of selecting to be used for this first physical channel among a plurality of TFC of the first physical channel setting the up link between this mobile radio station and the base station, and from being the 2nd TFC of the data transmission of selecting to be used for this second physical channel among a plurality of the 2nd TFC of the second physical channel setting this up link.

Particularly, mobile radio station uses the transmitting power of first physical channel of a TFC at each calculating among a plurality of TFC, the transmitting power that calculates is compared with the maximum power of mobile radio station, and based on the comparison the result determine whether mobile radio station is in can emission state.Then, mobile radio station is in a plurality of combinations of a plurality of first and second TFC each, calculate the summation of the transmitting power of first and second physical channels that use first and second TFC, the transmitting power summation that calculates is compared with the maximum power of mobile radio station, and based on the comparison the result determine whether mobile radio station is in can emission state.Then, mobile radio station is in and can selects a TFC a plurality of TFC of emission state from mobile radio station wherein.Then, the wherein mobile radio station of mobile radio station from a plurality of combinations that comprise a selected TFC is among a plurality of the 2nd TFC included in can a plurality of combinations of emission state, selects the 2nd TFC.Then, mobile radio station utilizes selected first and second TFC to launch data respectively in first and second physical channels.

According to the present invention, can select the 2nd TFC based on a TFC of previous selection, so that the summation of the transmitting power in first and second physical channels can not surpass the maximum power of mobile radio station.Therefore, owing to can under the situation of the transmitting power that need not to reduce first and second physical channels, launch data, prevented that therefore the quality of the data that send from reducing in first and second physical channels.

In addition, because mobile radio station can be selected the 2nd TFC in conjunction with a TFC who uses in the actual transmission, therefore also prevented generation owing to the fault to the 2nd TFC distribution transmitting power of distributing transmitting power to cause to a TFC, thereby the power of mobile radio station can be used effectively.Therefore, the throughput of second physical channel is increased.

In addition, the function of selecting to be used for the 2nd TFC of second physical channel can be added to the mobile radio station of the function with TFC who selects to be used for first physical channel, and can not influence the function of existing selection the one TFC.

Description of drawings

Fig. 1 is that mobile radio station that legacy wireless communication system is shown is operated the figure in the mode of the state of determining mobile radio station;

Fig. 2 is that mobile radio station that legacy wireless communication system is shown is operated the figure in the mode of selecting TFC and E-TFC;

Fig. 3 is the figure that illustrates according to the layout of wireless communication system of the present invention;

Fig. 4 is the flow chart of the sequence of operation of the state that is used for determining mobile radio station of the mobile radio station according to wireless communication system of the present invention;

Fig. 5 is the figure that illustrates according to the layout of the mobile radio station of the wireless communication system of embodiments of the invention 1;

Fig. 6 A is the figure of the power offset table used in the mobile radio station that illustrates according to the wireless communication system of embodiments of the invention 1;

Fig. 6 B is the figure of the power offset table used in the mobile radio station that illustrates according to the wireless communication system of embodiments of the invention 1;

Fig. 7 A is the figure of the condition management table that uses in the mobile radio station that illustrates according to the wireless communication system of embodiments of the invention 1;

Fig. 7 B is the figure of the condition management table that uses in the mobile radio station that illustrates according to the wireless communication system of embodiments of the invention 1;

Fig. 8 is the flow chart according to the integrated operation sequence of the mobile radio station of the wireless communication system of embodiments of the invention 1;

Fig. 9 is the figure that illustrates according to the layout of the base station control device of the wireless communication system of embodiments of the invention 2;

Figure 10 is the figure that illustrates according to the layout of the mobile radio station of the wireless communication system of embodiments of the invention 2;

Figure 11 is the figure of the condition management table that uses in the mobile radio station that illustrates according to the wireless communication system of embodiments of the invention 2;

Figure 12 is the flow chart according to the integrated operation sequence of the mobile radio station of the wireless communication system of embodiments of the invention 2;

Figure 13 illustrates according to the mobile radio station of the wireless communication system of embodiments of the invention 3 to operate figure in the mode of the state of determining mobile radio station;

Figure 14 is the flow chart according to the integrated operation sequence of the mobile radio station of the wireless communication system of embodiments of the invention 3;

Figure 15 illustrates according to the mobile radio station of the wireless communication system of embodiments of the invention 4 to operate figure in the mode of the state of determining mobile radio station;

Figure 16 illustrates according to the mobile radio station of the wireless communication system of embodiments of the invention 5 to operate figure in the mode of the state of determining mobile radio station; And

Figure 17 is the flow chart according to the integrated operation sequence of the mobile radio station of the wireless communication system of embodiments of the invention 5.

Embodiment

As shown in Figure 3, the wireless communication system according to the present invention mobile radio station 121 to 125 that has base station control device 101, be connected to the base station 111,112 of base station control device 101 and be connected to

base station

111 or 112.

Though have two base stations to be connected to base station control device 101 in Fig. 3, the number that is connected to the base station of base station control device 101 is not limited to 2.In addition, though there are five mobile radio stations 121 to 125 to be connected to base station 111,112, the number of mobile radio station is not limited to 5.

Base station 111 is the base stations that can receive data in EUDCH, and base station 112 is the base stations that can not receive data in EUDCH.

Therefore, the mobile radio station 124,125 that is connected to base station 112 only sends data and 112 receives data from the base station to base station 112 in traditional DPCH.DPCH comprises the DPCCH that is used to send the DPDCH that is used for data and is used to send pilot data and control data.

Be connected to the mobile radio station the 121, the 123rd of base station 111, can in EUDCH, send the mobile radio station of data.Mobile radio station 121,123 sends data and the 111 reception data from the base station to base station 111 in DPCH and EUDCH.Particularly, by the up link between mobile radio station 121,123 and the base station 111, mobile radio station 121,123 sends data and send data with high speed in EUDCH in DPCH.By the down link between mobile radio station 121,123 and the base station 111, base station 111 sends and sends control data in EUDCH in DPCH.

The mobile radio station 122 that is connected to base station 111 is the mobile radio stations that can not send data in EUDCH.Therefore, mobile radio station 122 only sends data and the 111 reception data from the base station to base station 111 in DPCH.

Base station control device 101 is used for the TFC set of DPCH by base station 111,112 to mobile radio station 121 to 125 indications, and is used for the E-TFC set of EUDCH to mobile radio station 121,123 indications by base station 111.

The ratio (the noise amount of liter) of noise power the expectation ripple of the data that receive from mobile radio station 121,123 by up link is measured in base station 111, the maximum E-TFC that upgrades the maximum TFC of DPCH of mobile radio station 121,123 and EUDCH at the fixed time be so that the noise amount of liter will be equal to or less than predetermined threshold value, and to mobile radio station 121,123 maximum TFC, the E-TFCs of indication through upgrading.The ratio (the noise amount of liter) of the noise power the expectation ripple of the data that receive from mobile radio station 122 by up link is also measured in base station 111, the maximum TFC of DPCH that upgrades mobile radio station 122 at the fixed time be so that the noise amount of liter will be equal to or less than predetermined threshold value, and to the mobile radio station 122 maximum TFCs of indication through upgrading.

The ratio (the noise amount of liter) of the noise power the expectation ripple of the data that receive from mobile radio station 124,125 by up link is measured in base station 112, the maximum TFC of DPCH that upgrades mobile radio station 124,125 at the fixed time be so that the noise amount of liter will be equal to or less than predetermined threshold value, and to mobile radio station 124, the 125 maximum TFCs of indication through upgrading.

Mobile radio station 121,123 is determined the state of mobile radio station when using TFC at each TFC that comprises from the TFC set of base station control device 101 indications, and determines the state of mobile radio station when using TFC at the TFC that comprises from the TFC set of base station control device 101 indications with each combination of the E-TFC that comprises from the E-TFC set of base station control device 101 indications.Perhaps, mobile radio station 121,123 is determined the state of mobile radio station when using E-TFC at each E-TFC that comprises in the E-TFC set, rather than determines the state of mobile radio station at each combination of TFC and E-TFC.Then, mobile radio station 121,123 is selected the E-TFC that will be used to send the TFC of DPCH and will be used to send EUDCH based on the mobile radio station state determined.

Mobile radio station 122,124,125 is determined the state of mobile radio station when using TFC at each TFC that comprises from the TFC set of base station control device 101 indications, and selects will be used to send the TFC of DPCH based on the mobile radio station state of determining.

To be described in state, mobile radio station state when using the combination of TFC and E-TFC and the process of mobile radio station state when using E-TFC of definite mobile radio station when using TFC of carrying out in the mobile radio station shown in Figure 3 121,123 below.

Determine the process of the state of mobile radio station when using TFC below with reference to flow chart description shown in Figure 4.When determining the state of mobile radio station when using TFC, will use with the transmitting power of DPCCH, reference power (maximum power of its oneself mobile radio station), TFC gathers and the relevant information of power excursion.Power excursion is meant the ratio of transmitting power with the transmitting power of DPCH of DPCCH when corresponding TFC is used.

Mobile radio station 121,123 is determined state at each unit mobile radio station in launch time at each TFC.At first, from the TFC set of base station control device 101 indications, select wherein not determine as yet in launch time the single TFC of the state of mobile radio station in current unit.At selected TFC,, and it is recorded in (step 101) in the memory based on the transmitting power of information calculations DPCH when this TFC is used of the power excursion of the transmitting power of DPCCH and TFC.

Then, determine last unit in launch time the state of mobile radio station when using this TFC whether be status of support (can launch the state of data) (step 102).If status of support, whether the number of times that the transmitting power of the interior DPCH of then definite time X in the past is equal to or greater than reference power is equal to or greater than Y (step 103).

If in step 103 less than Y, then judge current unit in launch time the state of mobile radio station when using this TFC be still status of support (step 104).If in step 103, be equal to or greater than Y, then judge current unit in launch time the state of mobile radio station when using this TFC be excess power state (can launch the state of data) (step 105).

If the state of mobile radio station is not a status of support in step 102, determine then among the time Z in the past whether the transmitting power of DPCH continues to be equal to or less than reference power (step 106) when mobile radio station uses this TFC.

If the transmitting power of DPCH continues to be equal to or less than reference power among the time Z in step 106 in the past, then judge current unit in launch time the state of mobile radio station when using this TFC be status of support (step 104).If the transmitting power of DPCH continues to be not equal to or less than reference power among the time Z in step 106 in the past, then determine last unit in launch time the state of mobile radio station when using this TFC whether be excess power state (step 107).

If the state of mobile radio station is not the excess power state in step 107, if promptly it is blocked state (can not launch the state of data), then judge current unit in launch time the state of mobile radio station when using this TFC also be blocked state (step 108).If the state of mobile radio station is the excess power state in step 107, then determine when mobile radio station uses this TFC the excess power state whether in the past time T or continue (step 109) in the longer time always.

If in step 109 the excess power state of mobile radio station in the past time T or continue in the longer time always, then judge current unit in launch time the state of mobile radio station when using this TFC be blocked state (step 108).If the excess power state of mobile radio station does not have time T in the past or continues in the longer time in step 109 always, then judge current unit in launch time the state of mobile radio station when using this TFC also be excess power state (step 105).

Then, determine whether to have finished in launch time at the mobile radio station state of all TFC and determine (step 110) in current unit.If do not finish, then step 101 is returned in control, and carries out the process identical with said process at undetermined another TFC still.

Also carry out the process identical to determine the state of mobile radio station 122,124,125 with said process.

Embodiment 1:

Below with reference to the layout of Fig. 5 description according to the mobile radio station 121,123 of the wireless communication system of the embodiment of the invention 1.

As shown in Figure 5, each in the mobile radio station 121,123 has receiving processor 301, control data separator 302, transmitting power measuring unit 303, EUDCH mission controller 304, DPCH mission controller 305 and emission processor 308.

Receiving processor 301 receives from the base station 111 data of sending.

The data separating that control data separator 302 receives receiving processor 301 becomes user data and control data.Control data separator 302 will send to E-TFC selector 307 from the information about maximum E-TFC of control data, and other user data and control data be sent to the layer of higher level.

In the control data of the layer that sends to higher level, the information that the TFC that sends by base station 111 from base station control device 101 gathers is sent to TFC selector 310 and E-TFC selector 307 by the layer by higher level.The information that the E-TFC that sends by base station 111 from base station control device 101 gathers is sent to E-TFC selector 307 by the layer by higher level.The information of TFC set and E-TFC set comprises the information of relevant block size, TTI (Transmission Time Interval) and code rate about TFC and E-TFC.

Transmitting power measuring unit 303 is in each unit transmitting power by uplink measurement DPCCH in launch time, and to TFC selector 310 and E-TFC selector 307 indication measurement results.

TFC selector 310 calculates the transmitting power of DPCCH when mobile radio station uses TFC at all TFC that comprise from the TFC of base station control device 101 indication, and upgrades the state of mobile radio station when using this TFC according to process shown in Figure 4.TFC selector 310 is also selected TFC according to the renewal result of mobile radio station state, the priority and the required emission rate of each transmission channel, and to the selected TFC of E-TFC selector 307 indications.

E-TFC selector 307 is at the transmitting power of all combination calculation DPCH when mobile radio station uses E-TFC and TFC of E-TFC that comprises from the E-TFC set of base station control device 101 indication and the TFC that comprises from the TFC set of base station control device 101 indications and the summation of the transmitting power of EUDCH, and upgrades the state of mobile radio station when use TFC and the TFC according to process shown in Figure 4.E-TFC selector 307 is also selected E-TFC according to the priority and the required emission rate of the renewal result of mobile radio station state, TFC selector 310 selected TFC, each transmission channel.

TFC selector 310 and E-TFC selector 307 are respectively to emission processor 308 selected TFC of indication and selected E-TFC.

Emission processor 308 utilizes from the TFC of TFC selector 310 indications, and the data that will be stored in DPDCH in the buffer 309 send to base station 111, and control data is sent to base station 111 in DPCCH.Emission processor 308 also utilizes the user data that will be stored among EUDCH in the buffer 306 from the E-TFC of E-TFC selector 307 indications to send to base station 111.

Describe TFC selector 310 below with reference to Fig. 6 and 7 and select the operation of TFC and the operation that E-TFC selector 307 is selected E-TFC.

The power offset table of power excursion of indicating each TFC is shown in Fig. 6 A, and the power offset table of the power excursion of each combination of indication E-TFC and TFC is shown in Fig. 6 B.Indication for the condition management table of the state of each TFC mobile radio station shown in Fig. 7 A, indication for the condition management table of the state of each combination mobile radio station of E-TFC and TFC shown in Fig. 7 B.Table shown in Fig. 6 A and the 7A is preserved by TFC selector 310, and the table shown in Fig. 6 B and the 7B is preserved by E-TFC selector 307.

Because TFC selector 310 is apprised of the information of TFC set, so TFC selector 310 generates the power offset table shown in Fig. 6 A according to this information.Because E-TFC selector 307 also is apprised of the information of TFC set except that being apprised of the E-TFC aggregate information, so E-TFC selector 307 generates the power offset table shown in Fig. 6 B according to these information.

TFC selector 310 utilizes the transmitting power of the power offset table shown in Fig. 6 A at each TFC calculating DPCH when mobile radio station uses TFC, and determines the state of mobile radio station when using this TFC according to process shown in Figure 4.TFC selector 310 upgrades the content of the condition management table shown in Fig. 7 A.In Fig. 7 A, " S " represents status of support, and " E " represents the excess power state, and " B " represents blocked state.TFC selector 310 is selected TFC from mobile radio station wherein is in TFC other states except that blocked state, so that TF with high emission speed and emission are set than being no more than required emission rate in having the transmission channel of high priority.Selected TFC is given E-TFC selector 307 from 310 indications of TFC selector.

E-TFC selector 307 utilizes the power offset table shown in Fig. 6 B at the transmitting power of each combination calculation of TFC and E-TFC DPCH when mobile radio station uses TFC and E-TFC and the summation of the transmitting power of EUDCH, and determines the state of mobile radio station when this TFC of use and the E-TFC according to process shown in Figure 4.E-TFC selector 307 upgrades the content of the condition management table shown in Fig. 7 B.

Then, select E-TFC among the E-TFC that E-TFC selector 307 comprises according to the preset selection condition from the combination that comprises the TFC that is selected by TFC selector 310.For example, suppose TFC2 selected (in Fig. 7 B, illustrating) with shade.In this case, the wherein mobile radio station of E-TFC selector 307 from the combination (illustrating with shade among Fig. 7 B) that comprises TFC2 is among E-TFC1 included in the combination of other states except that blocked state, the E-TFC2 selects E-TFC1, and wherein emission rate is because priority is higher and higher and be no more than required emission rate as far as possible.

According to present embodiment,, so can select E-TFC according to the TFC of previous selection so that total transmitting power is no more than the maximum power of mobile radio station because mobile radio station 121,123 is determined the state of mobile radio station at all combinations of TFC and E-TFC.Therefore, just can launch data, therefore prevent the quality reduction of the data that in DPCH and EUDCH, send owing to needn't reduce among DPCH and the EUDCH transmitting power of each.

In addition, according to present embodiment, because mobile radio station 121,123 can be according to select E-TFC with the combination of the TFC that uses in actual transmission, therefore also prevented generation owing to the fault to EUDCH distribution transmitting power of distributing transmitting power to cause to untapped TFC, thereby the power of mobile radio station can be used effectively.Therefore, the throughput of EUDCH is increased.

Below with reference to the flow chart description shown in Figure 8 sequence of operation according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 1.

As shown in Figure 8, transmitting power measuring unit 303 is measured the transmitting power (step 201) of DPCCH in each predetermined unit in launch time.

Then, TFC selector 310 is determined the state (step 202) of mobile radio station when using TFC according to process shown in Figure 4 at each TFC.When determining the state of mobile radio station, the maximum power of mobile radio station is used as reference power.

Then, E-TFC selector 307 is determined the state (step 203) of mobile radio station when using TFC and E-TFC according to process shown in Figure 4 at each combination of TFC and E-TFC.When determining the state of mobile radio station, the maximum power of mobile radio station is used as reference power.

Then, TFC selector 310 and E-TFC selector 307 have determined whether the time before the adjacent data transmission, promptly select the time (step 204) of TFC.This time is based on the Transmission Time Interval (TTI) that comprises in TFC set and the E-TFC set and comes definite.

If arrived the above-mentioned time in step 204, then TFC selector 310 calculates the required emission rate of each transmission channel for each transmission channel of DPCH according to the amount that is stored in the data in the buffer 309.Then, TFC selector 310 is among the TFC included the combination of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 205) of each transmission channel so that have the emission rate of transmission channel of higher priority to select TFC.

Then, E-TFC selector 307 calculates the required emission rate of each transmission channel for each transmission channel of EUDCH according to the amount that is stored in the data in the buffer 306.Then, the wherein mobile radio station of E-TFC selector 307 from the combination that comprises as mentioned above the TFC that selects is among the E-TFC included in the combination of other states except that blocked state, and selection E-TFC is higher and be no more than the required emission rate (step 206) of each transmission channel so that have the emission rate of transmission channel of higher priority.

Then, in the data transmission time, emission processor 308 utilizes by TFC selector 310 selected TFC and data is sent to base station 111 in DPCH, and utilizes by E-TFC selector 307 selected E-TFC and data are sent to base station 111 (step 207) in EUDCH.

Mobile radio station 121,123 is repeatedly carried out the aforesaid operations sequence at each predetermined unit in launch time.

According to present embodiment, as mentioned above,, so can select E-TFC according to the TFC of previous selection so that total transmitting power can not surpass the maximum power of mobile radio station because mobile radio station 121,123 is determined the state of mobile radio station at all combinations of TFC and E-TFC.Therefore, just can launch data, therefore prevent the quality reduction of the data that in DPCH and EUDCH, send owing to needn't reduce among DPCH and the EUDCH transmitting power of each.

In addition, according to present embodiment, the E-TFC selection function of EUDCH can be added to mobile radio station 121,123, and can not influence the existing TFC selection function of DPCH.

Embodiment 2:

Below with reference to the layout of Fig. 9 description according to the base station control device 101 of the wireless communication system of embodiments of the invention 2.

As shown in Figure 9, the base station control device 101 according to present embodiment has receiving terminal 701, receiving processor 702, controller 703, emission processor 705 and transmitting terminal 706.

Receiving terminal 701 is connected to base station 111,112, and by user data and the control data of base station 111,112 receptions from mobile radio station 121 to 125.

The data separating that receiving processor 702 receives receiving terminal 701 becomes user data and control data, will send to core network from the user data of higher level layer, and control data is sent to controller 703.Control data comprises about being used for the information on services in DPCH and EUDCH transmission data.

Has priority determiner 704 in the controller 703, be used for based on the above-mentioned information that the control data from receiving processor 702 comprises about service determine represent TFC to select and the E-TFC selection in which will be by the priority of priority treatment, and will send to about the information of the priority determined and launch processor 705.

Emission processor 705 will be from priority determiner 704 multiplexed about the information of priority and other user data and control data, and will send to corresponding mobile station (being mobile radio station 121,123 in the present embodiment) from transmitting terminal 706 by base station 111,112 through multiplexed data.

Below with reference to the layout of Figure 10 description according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 2.

As shown in figure 10, have receiving processor 801, control data separator 802, TFC state supervisor 803, transmitting power measuring unit 804, TFC selector 805, emission processor 806 and buffer 807 according in the mobile radio station 121,123 of present embodiment each.

Receiving processor 801 receives from the base station 111 data of sending.

The data separating that control data separator 802 receives receiving processor 801 becomes user data and control data.Control data separator 802 will be about selecting at TFC and the information of the priority that E-TFC selects sends to TFC selector 805, and with other user data and control data send to higher level layer.

TFC state supervisor 803 is in each unit transmitting power by uplink measurement DPCCH in launch time, and to TFC state supervisor 803 indication measurement results.

TFC state supervisor 803 utilizes about the information of the transmitting power of DPCCH with about the information at the power excursion of each combination of TFC and E-TFC, at the transmitting power of all combination calculation of TFC and E-TFC EUDCH when mobile radio station utilizes E-TFC and TFC emission data and the summation of the transmitting power of DPCH, and determine the state of mobile radio station when use E-TFC and the TFC according to process shown in Figure 4.

TFC selector 805 at first predetermined TFC select time based on from control data separator 802 about the Information Selection TFC of priority and E-TFC in have that of higher priority, select another according to selected TFC or E-TFC then.TFC selector 805 is to emission processor 806 selected TFC of indication and E-TFC.

Emission processor 806 utilizes from the TFC of TFC selector 805 indications, and the user data that will be stored in the DPCH in the buffer 807 in DPDCH sends to base station 111, and control data is sent to base station 111 in DPCCH.Emission processor 806 also utilizes from the E-TFC of TFC selector 805 indications, and the user data that will be stored in the EUDCH in the buffer 807 in EUDCH sends to base station 111.

Describe the operation that TFC selector 805 is selected TFC and E-TFC in detail below with reference to Figure 11.

Indication is shown in Figure 11 for the condition management table of the state of each combination mobile radio station of E-TFC and TFC.Table shown in Figure 11 is preserved by TFC state supervisor 803.

The difference of present embodiment and embodiment 1 is the condition management table of indication of 121,123 of mobile radio stations management for the state of each combination mobile radio station of TFC and E-TFC, and be used to carry out TFC selects and E-TFC selects sequence can be based on changing of indicating from base station control device 101 about the information of priority.

At first, TFC selector 805 determine that TFC select and the E-TFC selection in which have higher priority.Here suppose that E-TFC selects to select to have higher priority than TFC.

Then, TFC selector 805 is according to the priority and the amount that is stored in the data in the buffer 807 of each transmission channel of EUDCH, based on condition management table shown in Figure 11, be among E-TFC0 included the combination of other states except that blocked state, E-TFC1, E-TFC2, the E-TFC3 from mobile radio station wherein and select E-TFC.At this moment, to select E-TFC higher and be no more than required emission rate so that have the emission rate of transmission channel of higher priority in the transmission channel of EUDCH for TFC selector 805.

Then, TFC selector 805 is according to the priority and the amount that is stored in the data in the buffer 807 of each transmission channel of DPCH, based on condition management table shown in Figure 11, be among the TFC included the combination of other states except that blocked state from mobile radio station wherein and select TFC.

For example, suppose that TFC selector 805 selected the E-TFC3 among Figure 11.In this case, TFC selector 805 selects to comprise that the wherein mobile radio station in the combination (illustrating with shade) of E-TFC3 is in TFC0 included in the combination of other states except that blocked state in Figure 11.

According to present embodiment, because mobile radio station 121,123 is determined the state of mobile radio station at all combinations of TFC and E-TFC, so can select E-TFC or TFC so that total transmitting power can not surpass the maximum power of mobile radio station according to the TFC or the E-TFC of previous selection.Therefore, the quality that has prevented the data that send in DPCH and EUDCH reduces.

In addition, according to present embodiment, in mobile radio station 121,123, behind one of selection TFC and E-TFC, can select E-TFC or TFC to use the power of residue mobile radio station effectively.Therefore, throughput is increased.

In addition, according to present embodiment, base station control device 101 is determined about the priority that TFC selects and E-TFC selects, and is indicated these priority to mobile radio station 121,123.Therefore, can be preferentially to the power of the channel allocation mobile radio station that the service with strict anti-data delay requirement is provided, described service for example is the distribution services of voice data and flow data.Therefore, service quality is improved.

Below with reference to the flow chart description shown in Figure 12 sequence of operation according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 2.The difference of present embodiment and embodiment 1 is only determine the state (step 302) of mobile radio station and be used to select the sequence of TFC and E-TFC to be (step 304) determined according to the priority of TFC and E-TFC at the combination of TFC and E-TFC.

As shown in figure 12, transmitting power measuring unit 804 is measured the transmitting power (step 301) of DPCCH in each predetermined unit in launch time.

Then, TFC state supervisor 803 is determined the state (step 302) of mobile radio station when using TFC and E-TFC at all combinations of TFC and E-TFC.

Then, TFC selector 805 has determined whether the time before the adjacent data transmission, promptly selects the time (step 303) of TFC and E-TFC.Should the time if arrived, then TFC selector 805 determine that TFC select and the E-TFC selection in which have higher priority (step 304).

If TFC selects to have higher priority in step 304, then TFC selector 805 calculates the required emission rate of each transmission channel for each transmission channel of DPCH according to the amount that is stored in the data in the buffer 806.Then, TFC selector 805 is among the TFC included the combination of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 305) of each transmission channel so that have the emission rate of transmission channel of higher priority to select TFC.Then, TFC selector 805 calculates the required emission rate of each transmission channel for each transmission channel of EUDCH according to the amount that is stored in the data in the buffer 807.Then, the wherein mobile radio station of TFC selector 805 from the combination that comprises as mentioned above the TFC that selects is among the E-TFC included in the combination of other states except that blocked state, and selection E-TFC is higher and be no more than the required emission rate (step 306) of each transmission channel so that have the emission rate of transmission channel of higher priority.

If E-TFC selects to have higher priority in step 304, then TFC selector 805 calculates the required emission rate of each transmission channel for each transmission channel of EUDCH according to the amount that is stored in the data in the buffer 806.Then, TFC selector 805 is among the E-TFC included the combination of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 307) of each transmission channel so that have the emission rate of transmission channel of higher priority to select E-TFC.Then, TFC selector 805 calculates the required emission rate of each transmission channel for each transmission channel of DPCH according to the amount that is stored in the data in the buffer 807.Then, the wherein mobile radio station of TFC selector 805 from the combination that comprises as mentioned above the E-TFC that selects is among the TFC included in the combination of other states except that blocked state, and selection TFC is higher and be no more than the required emission rate (step 308) of each transmission channel so that have the emission rate of transmission channel of higher priority.

Then, in the data transmission time, emission processor 803 utilizes by TFC selector 805 selected TFC and E-TFC and data is sent to base station 111 (step 309) in DPCH and EUDCH.

According to present embodiment, as mentioned above, except that the function of embodiment 1, be used for selecting about TFC and the function of the priority of E-TFC selection also is added to base station control device 101 according to type service control.

Therefore, except the advantage of embodiment 1, can also be preferentially to the power that the channel allocation mobile radio station with service (for example distribution services of voice data and flow data) that strict anti-data delay requires is provided.Therefore, service quality is improved.

Embodiment 3:

Identical according to the layout of the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 3 with the layout of embodiment 1 shown in Figure 5, therefore will omit explanation to it.

Operate to select the mode of TFC and E-TFC according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 3 below with reference to Figure 13 description.

TFC selector 310 based on the maximum power of mobile radio station as reference power, determine the state of mobile radio station when using each TFC.In Figure 13, no matter among the TFC0 to TFC5 which is used, the state of mobile radio station all is judged as status of support, because transmitting power is less than reference power.Here supposition since the required emission rate of DPCH less than maximum TFC, therefore launching the processor 308 current TFC3 that just utilizing sends data in DPCH.

E-TFC selector 307 based on dump power as reference power, determine the state of mobile radio station when using each E-TFC, described dump power is to produce by the current transmit power that deducts DPCH from the maximum power of mobile radio station, as shown in figure 13.Particularly, E-TFC selector 307 transmitting power that can distribute to EUDCH based on reality in launch time in each unit is determined the state of E-TFC.The transmitting power of DPCH is measured by transmitting power measuring unit 303.

In general, continuous data is longer than the scheduled time slot that is used to select TFC launch time, and changes in flow rate has certain correlation with regard to the time.When in DPCH, sending data, in DPCH, send the required power of data and be considered near in DPCH, sending the required power of data in the past at next Transmission Time Interval with predetermined Transmission Time Interval.

Therefore, according to present embodiment, can select wherein next Transmission Time Interval in the past the total transmitting power in back probability of E-TFC of being no more than the maximum power of mobile radio station increased.By selecting such E-TFC, prevented that the quality of the data that send from reducing in DPCH and EUDCH.In addition, for keeping the possibility of transmitting power, untapped TFC reduced.Therefore, the throughput of EUDCH is increased.

For example, if the flow of DPCH is higher, then the current transmit power of DPCH is higher.Owing to be used for determining that at each E-TFC the reference power of the state of mobile radio station has reduced, therefore when the E-TFC that comprises the transmission channel with high emission speed was selected, mobile radio station was in blocked state.

On the contrary, if the flow of DPCH is lower, then be used for determining that at each E-TFC the reference power of the state of mobile radio station has increased.Therefore, can select to comprise the E-TFC of transmission channel with high emission speed.

According to present embodiment, as mentioned above, mobile radio station 121,123 can according to the flow of DPCH select E-TFC in case total transmitting power of DPCH and EUDCH to be equal to or less than the emission rate of the maximum power of mobile radio station and EUDCH high as much as possible.At this moment, the TPC that is used for DPCH is based on that maximum power till this moment selects.Therefore, the E-TFC selection function of EUDCH can be added to mobile radio station 121,123, and can not influence the existing TFC selection function of DPCH.

According to present embodiment, different with embodiment 1, mobile radio station 121,123 can be determined a state at each E-TFC, thereby determines that the required amount of calculation of state can be reduced.

Below with reference to the flow chart description shown in Figure 14 sequence of operation according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 3.

As shown in figure 14, transmitting power measuring unit 303 is measured the transmitting power (step 401) of DPCCH in each predetermined unit in launch time.

Then, TFC selector 310 is determined the state (step 402) of mobile radio station when using TFC according to process as shown in Figure 4 at each TFC.When determining the state of mobile radio station, the maximum power of mobile radio station is used as reference power.

Then, E-TFC selector 307 is determined the state (step 403) of mobile radio station when using E-TFC according to process shown in Figure 4 at each TFC.When determining the state of mobile radio station, dump power is used as reference power, and wherein dump power is to produce by the current transmit power that deducts DPCH from the maximum power of mobile radio station.

Then, TFC selector 310 and E-TFC selector 307 have determined whether the time before the adjacent data transmission, promptly select the time (step 404) of TFC and E-TFC.This time is based on the Transmission Time Interval (TTI) that comprises in TFC set and the E-TFC set and comes definite.

If arrived the above-mentioned time in step 404, then TFC selector 310 calculates the required emission rate of each transmission channel for each transmission channel of DPCH according to the amount that is stored in the data in the buffer 309.Then, TFC selector 310 is in the TFC of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 405) of each transmission channel so that have the emission rate of transmission channel of higher priority to select TFC.

Then, E-TFC selector 307 calculates the required emission rate of each transmission channel for each transmission channel of EUDCH according to the amount that is stored in the data in the buffer 306.Then, E-TFC selector 307 is in the E-TFC of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 406) of each transmission channel so that have the emission rate of transmission channel of higher priority to select E-TFC.

Then, in the data transmission time, emission processor 308 utilizes by TFC selector 310 selected TFC and data is sent to base station 111 in DPCH, and utilizes by E-TFC selector 307 selected E-TFC and data are sent to base station 111 (step 407) in EUDCH.

According to present embodiment, as mentioned above, mobile radio station 121,123 utilizes dump power as reference power, determines the state of E-TFC, described dump power is to produce by the current transmit power that deducts DPCH from the maximum power of mobile radio station, just can distribute to the transmitting power of EUDCH.Therefore, can be no more than the probability of maximum power according to total transmitting power that the flow of DPCH increases DPCH and EUDCH.In addition, the quality that has prevented the data that send in DPCH and EUDCH reduces.If the flow of DPCH is lower, so owing to comprise that the E-TFC of the transmission channel with high emission speed can correspondingly be selected, so the throughput of EUDCH is increased.

In addition, according to present embodiment, the TFC selection function of EUDCH can be added to mobile radio station 121,123, and can not influence the existing TFC selection function of DPCH.

Embodiment 4:

The difference of present embodiment and the foregoing description 3 is that when by TFC selector 310 selected TFC and previous T FC not simultaneously the state of mobile radio station when each E-TFC of use is adjusted.

For example, as shown in figure 15, suppose the transmitting power high Δ P of the transmitting power of the DPDCH that uses selected TFC than the DPDCH that uses previous T FC _Dpch1The transmitting power of=DPCCH * (Δ crr-Δ pre), wherein Δ crr represents the power excursion with respect to the DPCCH of selected TFC, Δ pre represents the power excursion with respect to the DPCCH of previous T FC.The discrepancy delta P that E-TFC selector 307 calculates between E-TFC5 and the E-TFC4 _Eudch1The transmitting power of=DPCCH * (Δ etfc5-Δ etfc4), wherein in E-TFC5, the transmitting power of EUDCH is that wherein mobile radio station is among the E-TFC of blocked state minimumly, in E-TFC4, transmitting power is maximum except that E-TFC5.At this moment, if Δ P _Dpch1Greater than Δ P _Eudch1, then E-TFC selector 307 is set to blocked state at the state of the mobile radio station of E-TFC4.Δ etfc4 represents the power excursion with respect to the DPCCH of E-TFC4, and Δ etfc5 represents the power excursion with respect to the DPCCH of E-TFC5.

On the contrary, suppose the transmitting power low Δ P of the transmitting power of the DPDCH that uses selected TFC than the DPDCH that uses previous T FC _Dpch2The discrepancy delta P that E-TFC selector 307 calculates between E-TFC3 and the E-TFC4 _Eudch2, wherein in E-TFC3, the transmitting power of EUDCH is that wherein mobile radio station is among the E-TFC of blocked state minimumly, in E-TFC4, transmitting power is maximum except that E-TFC3.At this moment, if Δ P _Eudch2Less than Δ P _Dpch2, then E-TFC selector 307 is set to the excess power state at the state of the mobile radio station of E-TFC4.

According to present embodiment, as mentioned above, even the TFC of DPCH has changed, mobile radio station 121,123 also can be by according to because the increase of the transmitting power of the DPCH that the variation of TFC causes or reduce to adjust the state of mobile radio station when using E-TFC, thereby selects E-TFC.Therefore, except the advantage that embodiment 3 is provided, the probability that uses the summation of the transmitting power of the transmitting power of DPCH of selected TFC and E-TFC and EUDCH to be equal to or less than the maximum power of mobile radio station is further increased, thereby the quality that has prevented the data that send in DPCH and EUDCH reduces.

In addition, according to present embodiment,, untapped TFC reduced for keeping the possibility of transmitting power.Therefore, the throughput of EUDCH is increased.

Embodiment 5:

Identical according to the layout of the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 5 with the layout of embodiment 1 shown in Figure 5, therefore will omit explanation to it.

Operate to select the mode of TFC and E-TFC according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 5 below with reference to Figure 16 description.

TFC selector 310 based on the maximum power of mobile radio station as reference power, determine the state of mobile radio station when using each TFC.In Figure 16, no matter among the TFC0 to TFC5 which is used, the state of mobile radio station all is judged as status of support, because transmitting power is less than reference power.Here suppose that TFC selector 310 selected TFC3.

E-TFC selector 307 based on dump power as reference power, determine the state of mobile radio station when using each E-TFC, described dump power is to produce by the transmitting power that deducts DPCH when mobile radio station uses the TFC (maximum TFC) of transmitting power maximum from the maximum power of mobile radio station, as shown in figure 16.Therefore, even TFC selector 310 has been selected maximum TFC, E-TFC selector 307 also can be selected E-TFC so that the summation of the transmitting power of the transmitting power of DPCH and EUDCH is equal to or less than the maximum power of mobile radio station.

If exist mobile radio station wherein to be in the E-TFC of blocked state, then after TFC is selected by TFC selector 310, the discrepancy delta P between the transmitting power that E-TFC selector 307 calculates the DPCH that uses maximum TFC and the transmitting power of the DPCH of the selected TFC of use _Unused, wherein mobile radio station is in other states and transmitting power maximum except that blocked state in maximum TFC.Then, E-TFC selector 307 is according to the descending of power excursion, calculates the discrepancy delta P between the transmitting power that mobile radio station wherein is in the transmitting power of E-TFC of blocked state and such E-TFC _Eudch, in this E-TFC, the transmitting power of EUDCH therein mobile radio station to be among the E-TFC of other states except that blocked state be the highest.If Δ P _UnusedGreater than Δ P _Eudch, then the state of E-TFC selector 307 mobile radio stations when using corresponding E-TFC is set to the excess power state.

For example, in Figure 16, until E-TFC2, mobile radio station all is in can emission state.But if higher E-TFC is used, then mobile radio station is in blocked state (can not emission state).In DPCH,, so Δ P is arranged in the power of mobile radio station because mobile radio station utilizes TFC3 to send data _UnusedAmount be not used.

E-TFC selector 307 is with the discrepancy delta P between the transmitting power of the transmitting power of E-TFC3 and E-TFC2 _Eudch1With Δ P _UnusedCompare, wherein mobile radio station is in blocked state in E-TFC3, and in E-TFC2, the transmitting power of EUDCH therein mobile radio station to be among the E-TFC of other states except that blocked state be the highest.Because Δ P in the case _UnusedGreater than Δ P _Eudch1, so E-TFC selector 307 will use the state of the mobile radio station of E-TFC3 to change into the excess power state.Similarly, E-TFC selector 307 is with the discrepancy delta P between the transmitting power of the transmitting power of E-TFC4 and E-TFC2 _Eudch2With Δ P _UnusedCompare.Because Δ P in the case _UnusedAlso greater than Δ P _Eudch1, so E-TFC selector 307 will use the state of the mobile radio station of E-TFC4 to change into the excess power state.

According to present embodiment, as mentioned above, mobile radio station 121,123 can be chosen always and comprise having the more transmission channel of high emission speed, thereby the power of mobile radio station can be used effectively.Therefore, the throughput of EUDCH is increased.

In addition, according to present embodiment, mobile radio station 121,123 selects to be used for the TFC of DPCH based on the maximum power from that time on.Therefore, the E-TFC selection function of EUDCH can be added to mobile radio station 121,123, and can not influence existing TFC selection function.

Below with reference to the flow chart description shown in Figure 17 sequence of operation according to the mobile radio station 121,123 of the wireless communication system of embodiments of the invention 5.

As shown in figure 17, transmitting power measuring unit 303 is measured the transmitting power (step 501) of DPCCH in each predetermined unit in launch time.

Then, TFC selector 310 is determined the state (step 502) of mobile radio station when using TFC according to process shown in Figure 4 at each TFC.When determining the state of mobile radio station, the maximum power of mobile radio station is used as reference power.

Then, E-TFC selector 307 is determined the state (step 503) of mobile radio station when using E-TFC according to process shown in Figure 4 at each TFC.When determining the state of mobile radio station, dump power is used as reference power, and wherein dump power is to produce by deduct the transmitting power of DPCH that mobile radio station wherein is in the transmitting power maximum of other states except that blocked state and DPCH from the maximum power of mobile radio station.

Then, TFC selector 310 and E-TFC selector 307 have determined whether the time before the adjacent data transmission, promptly select the time (step 504) of TFC and E-TFC.This time is based on the Transmission Time Interval (TTI) that comprises in TFC set and the E-TFC set and comes definite.

If arrived the above-mentioned time in step 504, then TFC selector 310 calculates the required emission rate of each transmission channel for each transmission channel of DPCH according to the amount that is stored in the data in the buffer 309.Then, TFC selector 310 is in the TFC of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 505) of each transmission channel so that have the emission rate of transmission channel of higher priority to select TFC.

E-TFC selector 307 calculates the discrepancy delta P between the transmitting power of DPCH of the transmitting power of the TFC of the transmitting power maximum of DPCH wherein and selected TFC _UnusedThen, E-TFC selector 307 is according to the descending of power excursion, calculates the discrepancy delta P between the EUDCH transmitting power that mobile radio station wherein is in the transmitting power of E-TFC of blocked state and such E-TFC _Eudch, in this E-TFC, the transmitting power of EUDCH therein mobile radio station to be among the E-TFC of other states except that blocked state be the highest.If Δ P _EudchLess than Δ P _Unused, then the state of E-TFC selector 307 mobile radio stations when using corresponding E-TFC is set to excess power state (step 506).

Then, E-TFC selector 307 calculates the required emission rate of each transmission channel for each transmission channel of EUDCH according to the amount that is stored in the data in the buffer 306.Then, E-TFC selector 307 is in the E-TFC of other states except that blocked state from mobile radio station wherein, and it is higher and be no more than the required emission rate (step 507) of each transmission channel so that have the emission rate of transmission channel of higher priority to select E-TFC.

Then, in the data transmission time, emission processor 308 utilizes by TFC selector 310 selected TFC and data is sent to base station 111 in DPCH, and utilizes by E-TFC selector 307 selected E-TFC and data are sent to base station 111 (step 508) in EUDCH.

According to present embodiment, as mentioned above, mobile radio station 121,123 is based on the dump power as transmitting power, determine the state of E-TFC, described dump power is to produce by the transmitting power that deducts the DPCH that uses maximum TFC from the maximum power of mobile radio station, wherein in this maximum TFC, mobile radio station is in other states except that blocked state and the transmitting power maximum of DPCH.Then, according to the difference between the transmitting power of the transmitting power of the DPCH that uses maximum TFC and the DPCH of the selected TFC of use, changed into the excess power state from blocked state at the state of the mobile radio station of corresponding E-TFC.

Therefore,, select E-TFC so that the transmitting power of DPCH and EUDCH is no more than the probability of maximum power, and prevented that the quality of the data that send from reducing in DPCH and EUDCH total also can increase even variation has taken place the flow of DPCH.If the flow of DPCH is lower, so owing to comprise that the E-TFC of the transmission channel with high emission speed can correspondingly be selected, so the throughput of EUDCH is increased.

Embodiment 6:

According to embodiments of the invention 6, determine the priority that TFC selects and E-TFC selects according to the content of the service that provides among service that provides among the DPCH and the EUDCH, and the determined priority of foundation and exchange according to embodiment 3 to the processing of DPCH with to the processing of EUDCH.

Particularly, if the priority that TFC selects is higher, then TFC selection and E-TFC select to carry out by the mode described in the above embodiment 3.If the priority that E-TFC selects is higher, then based on dump power as reference power, determine the state of mobile radio station when using each TFC, described dump power is to produce by the current transmit power that deducts EUDCH from the maximum power of mobile radio station.

Therefore, according to present embodiment, therefore, can be preferentially to the power that the channel allocation mobile radio station with service (for example distribution services of voice data and flow data) that strict anti-data delay requires is provided.Therefore, service quality is improved.

The priority of DPCH and EUDCH can be determined and is instructed to mobile radio station 121,123, perhaps can be determined by mobile radio station 121,123 by base station control device 101.

Embodiment 7:

According to embodiments of the invention 7, determine the priority that TFC selects and E-TFC selects according to the content of the service that provides among service that provides among the DPCH and the EUDCH, and the determined priority of foundation and exchange according to embodiment 5 to the processing of DPCH with to the processing of EUDCH.

Particularly, if the priority that TFC selects is higher, then TFC selection and E-TFC select to carry out by the mode described in the above embodiment 5.If the priority that E-TFC selects is higher, then based on dump power as reference power, determine the state of mobile radio station when using each TFC, described dump power is to use wherein by deducting from the maximum power of mobile radio station that the current transmit power of the EUDCH of the E-TFC of the transmitting power maximum of EUDCH produces.

Claims

1. method of utilizing mobile radio station to select transformat combination, described mobile radio station selects first transformat combination to be used in the data transmission in first physical channel between described mobile radio station and the base station, and select second transformat combination to be used in the data transmission in second physical channel between described mobile radio station and the described base station, described method comprises:

Select first transformat combination, described first transformat combination does not comprise blocked state when sending data in being used in described first physical channel, and wherein, the transmitted power of described first physical channel is estimated based on selected first transformat combination;

The described transmitted power that deducts described first physical channel that uses with described second physical channel by the maximum transmit power from described mobile radio station is calculated reference power;

Select second transformat combination, described second transformat combination comprises when sending data in being used in described second physical channel can transmit status, wherein, if be no more than described reference power based on the estimated transmitted power of described second transformat combination, then described second transformat combination comprise described can transmit status.

2. wireless communication system, comprise base station and at least one mobile radio station, wherein said mobile radio station selects first transformat combination being used in the data transmission in first physical channel between described mobile radio station and the base station by mobile radio station, and selects second transformat combination to select transformat combination with the data transmission that is used in second physical channel between described mobile radio station and the described base station; And

Described mobile radio station comprises:

First power controller, described first power controller is selected first transformat combination, described first transformat combination does not comprise blocked state when sending data in being used in described first physical channel, wherein, the transmitted power of described first physical channel is estimated based on selected first transformat combination;

Transmit control device, described transmit control device calculates reference power by the described transmitted power that the maximum transmit power from described mobile radio station deducts described first physical channel that uses with described second physical channel;

Second transmit control device, described second transmit control device is selected second transformat combination, described second transformat combination comprises when sending data in being used in described second physical channel can transmit status, wherein, if be no more than described reference power based on the estimated transmitted power of described second transformat combination, then described second transformat combination comprise described can transmit status.

3. mobile radio station, it selects first transformat combination to be used in the data transmission in first physical channel between described mobile radio station and the base station by mobile radio station, and select second transformat combination to select transformat combination with the data transmission that is used in second physical channel between described mobile radio station and the described base station, comprising: